The history of advances in research on Xylella fastidiosa provides excellent examples of how paradigms both advance and limit our scientific understanding of plant pathogens and the plant diseases they cause. I describe this from a personal perspective, having been directly involved with many persons who made paradigm-changing discoveries, beginning with the discovery that a bacterium, not a virus, causes Pierce's disease of grape and other plant diseases in numerous plant species, including important crop and forest species.
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BDSF Analogues Inhibit Quorum Sensing-Regulated Biofilm Production in .
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School of Chemistry, University College Cork, T12 YN60 Cork, Ireland.
is an aerobic, Gram-negative bacterium that is responsible for many plant diseases. The bacterium is the causal agent of Pierce's disease in grapes and is also responsible for citrus variegated chlorosis, peach phony disease, olive quick decline syndrome and leaf scorches of various species. The production of biofilm is intrinsically linked with persistence and transmission in .
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USDA Agricultural Research Service, 9611 S. Riverbend Ave, Parlier, District of Columbia, United States, 93648;
Southern shagbark hickory (Carya carolinae-septentrionalis) is one of several deciduous trees in the family Juglandaceae and genus Carya that are native to North America. Southern shagbark hickory has a restricted distribution to the Southeast U.S.
View Article and Find Full Text PDFCentury-old herbarium specimen provides insights into Pierce's disease of grapevines emergence in the Americas.
Curr Biol
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CIRAD, UMR PVBMT, La Réunion, 97410 Saint-Pierre, La Réunion, France. Electronic address:
Fossils and other preserved specimens are integral for informing timing and evolutionary history in every biological system. By isolating a plant pathogen genome from herbarium-preserved diseased grapevine material from 1906 (Herb_1906), we were able to answer questions about an enigmatic system. The emergence of Pierce's disease (PD) of grapevine has shaped viticultural production in North America; yet, there are uncertainties about the geographic origin of the pathogen (Xylella fastidiosa subsp.
View Article and Find Full Text PDFThe dynamics of virulence evolution in vector-borne plant pathogens can be complex. Here, we use individual-based, quantitative-genetic simulations to investigate how virulence evolution depends on genetic trade-offs and population structure. Although quite generic, the model is inspired by the ecology of the plant-pathogenic bacterium , and we use it to gain insights into possible modes of virulence evolution in that group.
View Article and Find Full Text PDFThree leafhoppers newly recorded from the European mainland (Hemiptera: Auchenorrhyncha: Cicadellidae), with notes on their habitats.
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Universidade da Madeira; 9000-390 Funchal; Madeira; Portugal; CIBIO; Centro de Investigação em Biodiversidade e Recursos Genéticos; Universidade do Porto; Portugal.
The leafhopper fauna of the Iberian Peninsula is the least studied in Europe. Recent surveys in agroecosystem areas of southern Spain, specifically in Andalusia, aimed to identify potential Auchenorrhyncha vectors of the bacterium Xylella fastidiosa. During these surveys, three previously unrecorded species of Cicadellidae belonging to the subfamily Deltocephalinae have been discovered.
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